Diplopia secondary to endoscopic sinus surgery

Objective - Diplopia after endoscopic sinus surgery (ESS) is rare but very serious. In this study, we investigated the characteristics, prognosis and treatment of diplopia occurring after ESS. Material and Methods - A retrospective analysis was carried out to investigate three patients with diplopia after ESS referred to us from other hospitals. Results - In one case, an improvement in ocular motility was seen after surgical treatment. In the other cases, no improvement was observed, despite surgical treatment. Conclusion - In order to prevent diplopia after ESS, the surgeon must possess a complete anatomical knowledge obtained by means of cadaveric dissection, the ability to carefully read preoperative CT scans and the necessary surgical experience.